diff --git a/go/analysis/passes/copylock/copylock.go b/go/analysis/passes/copylock/copylock.go
index d0c4df091ed..8f6e7db6a27 100644
--- a/go/analysis/passes/copylock/copylock.go
+++ b/go/analysis/passes/copylock/copylock.go
@@ -240,7 +240,10 @@ func lockPathRhs(pass *analysis.Pass, x ast.Expr) typePath {
 			return nil
 		}
 	}
-	return lockPath(pass.Pkg, pass.TypesInfo.Types[x].Type, nil)
+	if tv, ok := pass.TypesInfo.Types[x]; ok && tv.IsValue() {
+		return lockPath(pass.Pkg, tv.Type, nil)
+	}
+	return nil
 }
 
 // lockPath returns a typePath describing the location of a lock value
diff --git a/go/analysis/passes/copylock/copylock_test.go b/go/analysis/passes/copylock/copylock_test.go
index 5726806dbf9..91bef71979b 100644
--- a/go/analysis/passes/copylock/copylock_test.go
+++ b/go/analysis/passes/copylock/copylock_test.go
@@ -13,5 +13,5 @@ import (
 
 func Test(t *testing.T) {
 	testdata := analysistest.TestData()
-	analysistest.Run(t, testdata, copylock.Analyzer, "a", "typeparams")
+	analysistest.Run(t, testdata, copylock.Analyzer, "a", "typeparams", "issue67787")
 }
diff --git a/go/analysis/passes/copylock/main.go b/go/analysis/passes/copylock/main.go
new file mode 100644
index 00000000000..77b614ff4f5
--- /dev/null
+++ b/go/analysis/passes/copylock/main.go
@@ -0,0 +1,16 @@
+// Copyright 2024 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build ignore
+
+// The copylock command applies the golang.org/x/tools/go/analysis/passes/copylock
+// analysis to the specified packages of Go source code.
+package main
+
+import (
+	"golang.org/x/tools/go/analysis/passes/copylock"
+	"golang.org/x/tools/go/analysis/singlechecker"
+)
+
+func main() { singlechecker.Main(copylock.Analyzer) }
diff --git a/go/analysis/passes/copylock/testdata/src/issue67787/issue67787.go b/go/analysis/passes/copylock/testdata/src/issue67787/issue67787.go
new file mode 100644
index 00000000000..c71773dff9d
--- /dev/null
+++ b/go/analysis/passes/copylock/testdata/src/issue67787/issue67787.go
@@ -0,0 +1,8 @@
+package issue67787
+
+import "sync"
+
+type T struct{ mu sync.Mutex }
+type T1 struct{ t *T }
+
+func NewT1() *T1 { return &T1{T} } // no analyzer diagnostic about T